package com.example.mitao.utils.status;

import android.annotation.TargetApi;
import android.app.Activity;
import android.content.Context;
import android.content.res.Resources;
import android.graphics.Color;
import android.os.Build;
import android.view.View;
import android.view.ViewGroup;
import android.view.WindowManager;
import android.widget.LinearLayout;

import androidx.drawerlayout.widget.DrawerLayout;

import com.example.mitao.utils.LogUtil;

import java.lang.reflect.Method;

/**
 *
 */
public class StatusBarUtil {

	private final static String TAG = StatusBarUtil.class.getSimpleName();
	public static final int DEFAULT_STATUS_BAR_ALPHA = 112;

	/**
	 * 设置状态栏颜色
	 * 
	 * @param activity
	 *            需要设置的 activity
	 * @param color
	 *            状态栏颜色值
	 */
	public static void setColor(Activity activity, int color) {
		setColor(activity, color, DEFAULT_STATUS_BAR_ALPHA);
	}

	/**
	 * 设置状态栏颜色
	 * 
	 * @param activity
	 *            需要设置的activity
	 * @param color
	 *            状态栏颜色值
	 * @param statusBarAlpha
	 *            状态栏透明度
	 */

	public static void setColor(Activity activity, int color, int statusBarAlpha) {
		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
			activity.getWindow()
					.addFlags(
							WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
			activity.getWindow().clearFlags(
					WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
			activity.getWindow().setStatusBarColor(
					calculateStatusColor(color, statusBarAlpha));
		} else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
			activity.getWindow().addFlags(
					WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
			ViewGroup decorView = (ViewGroup) activity.getWindow()
					.getDecorView();
			int count = decorView.getChildCount();
			if (count > 0
					&& decorView.getChildAt(count - 1) instanceof StatusBarView) {
				decorView.getChildAt(count - 1).setBackgroundColor(
						calculateStatusColor(color, statusBarAlpha));
			} else {
				StatusBarView statusView = createStatusBarView(activity, color,
						statusBarAlpha);
				decorView.addView(statusView);
			}
			setRootView(activity);
		}
	}

	/**
	 * 为滑动返回界面设置状态栏颜色
	 * 
	 * @param activity
	 *            需要设置的activity
	 * @param color
	 *            状态栏颜色值
	 */
	public static void setColorForSwipeBack(Activity activity, int color) {
		setColorForSwipeBack(activity, color, DEFAULT_STATUS_BAR_ALPHA);
	}

	/**
	 * 为滑动返回界面设置状态栏颜色
	 * 
	 * @param activity
	 *            需要设置的activity
	 * @param color
	 *            状态栏颜色值
	 * @param statusBarAlpha
	 *            状态栏透明度
	 */
	public static void setColorForSwipeBack(Activity activity, int color,
                                            int statusBarAlpha) {
		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
			ViewGroup contentView = ((ViewGroup) activity
					.findViewById(android.R.id.content));
			contentView.setPadding(0, getStatusBarHeight(activity), 0, 0);
			contentView.setBackgroundColor(calculateStatusColor(color,
					statusBarAlpha));
			setTransparentForWindow(activity);
		}
	}

	/**
	 * 设置状态栏纯色 不加半透明效果
	 * 
	 * @param activity
	 *            需要设置的 activity
	 * @param color
	 *            状态栏颜色值
	 */
	public static void setColorNoTranslucent(Activity activity, int color) {
		setColor(activity, color, 0);
	}

	/**
	 * 设置状态栏颜色(5.0以下无半透明效果,不建议使用)
	 * 
	 * @param activity
	 *            需要设置的 activity
	 * @param color
	 *            状态栏颜色值
	 */
	@Deprecated
	public static void setColorDiff(Activity activity, int color) {
		if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) {
			return;
		}
		transparentStatusBar(activity);
		ViewGroup contentView = (ViewGroup) activity
				.findViewById(android.R.id.content);
		// 移除半透明矩形,以免叠加
		if (contentView.getChildCount() > 1) {
			contentView.getChildAt(1).setBackgroundColor(color);
		} else {
			contentView.addView(createStatusBarView(activity, color));
		}
		setRootView(activity);
	}

	/**
	 * 使状态栏半透明
	 * 
	 * 适用于图片作为背景的界面,此时需要图片填充到状态栏
	 * 
	 * @param activity
	 *            需要设置的activity
	 */
	public static void setTranslucent(Activity activity) {
		setTranslucent(activity, DEFAULT_STATUS_BAR_ALPHA);
	}

	/**
	 * 使状态栏半透明
	 * 
	 * 适用于图片作为背景的界面,此时需要图片填充到状态栏
	 * 
	 * @param activity
	 *            需要设置的activity
	 * @param statusBarAlpha
	 *            状态栏透明度
	 */
	public static void setTranslucent(Activity activity, int statusBarAlpha) {
		if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) {
			return;
		}
		setTransparent(activity);
		addTranslucentView(activity, statusBarAlpha);
	}

	/**
	 * 针对根布局是 CoordinatorLayout, 使状态栏半透明
	 * 
	 * 适用于图片作为背景的界面,此时需要图片填充到状态栏
	 * 
	 * @param activity
	 *            需要设置的activity
	 * @param statusBarAlpha
	 *            状态栏透明度
	 */
	public static void setTranslucentForCoordinatorLayout(Activity activity,
                                                          int statusBarAlpha) {
		if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) {
			return;
		}
		transparentStatusBar(activity);
		addTranslucentView(activity, statusBarAlpha);
	}

	/**
	 * 设置状态栏全透明
	 * 
	 * @param activity
	 *            需要设置的activity
	 */
	public static void setTransparent(Activity activity) {
		if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) {
			return;
		}
		transparentStatusBar(activity);
		setRootView(activity);
	}

	/**
	 * 使状态栏透明(5.0以上半透明效果,不建议使用)
	 * 
	 * 适用于图片作为背景的界面,此时需要图片填充到状态栏
	 * 
	 * @param activity
	 *            需要设置的activity
	 */
	@Deprecated
	public static void setTranslucentDiff(Activity activity) {
		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
			// 设置状态栏透明
			activity.getWindow().addFlags(
					WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
			setRootView(activity);
		}
	}

	/**
	 * 为DrawerLayout 布局设置状态栏变色
	 * 
	 * @param activity
	 *            需要设置的activity
	 * @param drawerLayout
	 *            DrawerLayout
	 * @param color
	 *            状态栏颜色值
	 */
	public static void setColorForDrawerLayout(Activity activity,
                                               DrawerLayout drawerLayout, int color) {
		setColorForDrawerLayout(activity, drawerLayout, color,
				DEFAULT_STATUS_BAR_ALPHA);
	}

	/**
	 * 为DrawerLayout 布局设置状态栏颜色,纯色
	 * 
	 * @param activity
	 *            需要设置的activity
	 * @param drawerLayout
	 *            DrawerLayout
	 * @param color
	 *            状态栏颜色值
	 */
	public static void setColorNoTranslucentForDrawerLayout(Activity activity,
                                                            DrawerLayout drawerLayout, int color) {
		setColorForDrawerLayout(activity, drawerLayout, color, 0);
	}

	/**
	 * 为DrawerLayout 布局设置状态栏变色
	 * 
	 * @param activity
	 *            需要设置的activity
	 * @param drawerLayout
	 *            DrawerLayout
	 * @param color
	 *            状态栏颜色值
	 * @param statusBarAlpha
	 *            状态栏透明度
	 */
	public static void setColorForDrawerLayout(Activity activity,
                                               DrawerLayout drawerLayout, int color, int statusBarAlpha) {
		if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) {
			return;
		}
		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
			activity.getWindow()
					.addFlags(
							WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
			activity.getWindow().clearFlags(
					WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
			activity.getWindow().setStatusBarColor(Color.TRANSPARENT);
		} else {
			activity.getWindow().addFlags(
					WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
		}
		// 生成一个状态栏大小的矩形
		// 添加 statusBarView 到布局中
		ViewGroup contentLayout = (ViewGroup) drawerLayout.getChildAt(0);
		if (contentLayout.getChildCount() > 0
				&& contentLayout.getChildAt(0) instanceof StatusBarView) {
			contentLayout.getChildAt(0).setBackgroundColor(
					calculateStatusColor(color, statusBarAlpha));
		} else {
			StatusBarView statusBarView = createStatusBarView(activity, color);
			contentLayout.addView(statusBarView, 0);
		}
		// 内容布局不是 LinearLayout 时,设置padding top
		if (!(contentLayout instanceof LinearLayout)
				&& contentLayout.getChildAt(1) != null) {
			contentLayout.getChildAt(1).setPadding(
					contentLayout.getPaddingLeft(),
					getStatusBarHeight(activity)
							+ contentLayout.getPaddingTop(),
					contentLayout.getPaddingRight(),
					contentLayout.getPaddingBottom());
		}
		// 设置属性
		ViewGroup drawer = (ViewGroup) drawerLayout.getChildAt(1);
		drawerLayout.setFitsSystemWindows(false);
		contentLayout.setFitsSystemWindows(false);
		contentLayout.setClipToPadding(true);
		drawer.setFitsSystemWindows(false);

		addTranslucentView(activity, statusBarAlpha);
	}

	/**
	 * 为DrawerLayout 布局设置状态栏变色(5.0以下无半透明效果,不建议使用)
	 * 
	 * @param activity
	 *            需要设置的activity
	 * @param drawerLayout
	 *            DrawerLayout
	 * @param color
	 *            状态栏颜色值
	 */
	@Deprecated
	public static void setColorForDrawerLayoutDiff(Activity activity,
                                                   DrawerLayout drawerLayout, int color) {
		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
			activity.getWindow().addFlags(
					WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
			// 生成一个状态栏大小的矩形
			ViewGroup contentLayout = (ViewGroup) drawerLayout.getChildAt(0);
			if (contentLayout.getChildCount() > 0
					&& contentLayout.getChildAt(0) instanceof StatusBarView) {
				contentLayout.getChildAt(0).setBackgroundColor(
						calculateStatusColor(color, DEFAULT_STATUS_BAR_ALPHA));
			} else {
				// 添加 statusBarView 到布局中
				StatusBarView statusBarView = createStatusBarView(activity,
						color);
				contentLayout.addView(statusBarView, 0);
			}
			// 内容布局不是 LinearLayout 时,设置padding top
			if (!(contentLayout instanceof LinearLayout)
					&& contentLayout.getChildAt(1) != null) {
				contentLayout.getChildAt(1).setPadding(0,
						getStatusBarHeight(activity), 0, 0);
			}
			// 设置属性
			ViewGroup drawer = (ViewGroup) drawerLayout.getChildAt(1);
			drawerLayout.setFitsSystemWindows(false);
			contentLayout.setFitsSystemWindows(false);
			contentLayout.setClipToPadding(true);
			drawer.setFitsSystemWindows(false);
		}
	}

	/**
	 * 为 DrawerLayout 布局设置状态栏透明
	 * 
	 * @param activity
	 *            需要设置的activity
	 * @param drawerLayout
	 *            DrawerLayout
	 */
	public static void setTranslucentForDrawerLayout(Activity activity,
                                                     DrawerLayout drawerLayout) {
		setTranslucentForDrawerLayout(activity, drawerLayout,
				DEFAULT_STATUS_BAR_ALPHA);
	}

	/**
	 * 为 DrawerLayout 布局设置状态栏透明
	 * 
	 * @param activity
	 *            需要设置的activity
	 * @param drawerLayout
	 *            DrawerLayout
	 */
	public static void setTranslucentForDrawerLayout(Activity activity,
                                                     DrawerLayout drawerLayout, int statusBarAlpha) {
		if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) {
			return;
		}
		setTransparentForDrawerLayout(activity, drawerLayout);
		addTranslucentView(activity, statusBarAlpha);
	}

	/**
	 * 为 DrawerLayout 布局设置状态栏透明
	 * 
	 * @param activity
	 *            需要设置的activity
	 * @param drawerLayout
	 *            DrawerLayout
	 */
	public static void setTransparentForDrawerLayout(Activity activity,
                                                     DrawerLayout drawerLayout) {
		if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) {
			return;
		}
		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
			activity.getWindow()
					.addFlags(
							WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
			activity.getWindow().clearFlags(
					WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
			activity.getWindow().setStatusBarColor(Color.TRANSPARENT);
		} else {
			activity.getWindow().addFlags(
					WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
		}

		ViewGroup contentLayout = (ViewGroup) drawerLayout.getChildAt(0);
		// 内容布局不是 LinearLayout 时,设置padding top
		if (!(contentLayout instanceof LinearLayout)
				&& contentLayout.getChildAt(1) != null) {
			contentLayout.getChildAt(1).setPadding(0,
					getStatusBarHeight(activity), 0, 0);
		}

		// 设置属性
		ViewGroup drawer = (ViewGroup) drawerLayout.getChildAt(1);
		drawerLayout.setFitsSystemWindows(false);
		contentLayout.setFitsSystemWindows(false);
		contentLayout.setClipToPadding(true);
		drawer.setFitsSystemWindows(false);
	}

	/**
	 * 为 DrawerLayout 布局设置状态栏透明(5.0以上半透明效果,不建议使用)
	 * 
	 * @param activity
	 *            需要设置的activity
	 * @param drawerLayout
	 *            DrawerLayout
	 */
	@Deprecated
	public static void setTranslucentForDrawerLayoutDiff(Activity activity,
                                                         DrawerLayout drawerLayout) {
		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
			// 设置状态栏透明
			activity.getWindow().addFlags(
					WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
			// 设置内容布局属性
			ViewGroup contentLayout = (ViewGroup) drawerLayout.getChildAt(0);
			contentLayout.setFitsSystemWindows(true);
			contentLayout.setClipToPadding(true);
			// 设置抽屉布局属性
			ViewGroup vg = (ViewGroup) drawerLayout.getChildAt(1);
			vg.setFitsSystemWindows(false);
			// 设置 DrawerLayout 属性
			drawerLayout.setFitsSystemWindows(false);
		}
	}

	/**
	 * 为头部是 ImageView 的界面设置状态栏全透明
	 * 
	 * @param activity
	 *            需要设置的activity
	 * @param needOffsetView
	 *            需要向下偏移的 View
	 */
	public static void setTransparentForImageView(Activity activity,
                                                  View needOffsetView) {
		setTranslucentForImageView(activity, 0, needOffsetView);
	}

	/**
	 * 为头部是 ImageView 的界面设置状态栏透明(使用默认透明度)
	 * 
	 * @param activity
	 *            需要设置的activity
	 * @param needOffsetView
	 *            需要向下偏移的 View
	 */
	public static void setTranslucentForImageView(Activity activity,
                                                  View needOffsetView) {
		setTranslucentForImageView(activity, DEFAULT_STATUS_BAR_ALPHA,
				needOffsetView);
	}

	/**
	 * 为头部是 ImageView 的界面设置状态栏透明
	 * 
	 * @param activity
	 *            需要设置的activity
	 * @param statusBarAlpha
	 *            状态栏透明度
	 * @param needOffsetView
	 *            需要向下偏移的 View
	 */
	public static void setTranslucentForImageView(Activity activity,
                                                  int statusBarAlpha, View needOffsetView) {
		if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) {
			return;
		}
		setTransparentForWindow(activity);
		addTranslucentView(activity, statusBarAlpha);
		if (needOffsetView != null) {
			ViewGroup.MarginLayoutParams layoutParams = (ViewGroup.MarginLayoutParams) needOffsetView
					.getLayoutParams();
			layoutParams.setMargins(0, getStatusBarHeight(activity), 0, 0);
		}
	}

	/**
	 * 为 fragment 头部是 ImageView 的设置状态栏透明
	 * 
	 * @param activity
	 *            fragment 对应的 activity
	 * @param needOffsetView
	 *            需要向下偏移的 View
	 */
	public static void setTranslucentForImageViewInFragment(Activity activity,
                                                            View needOffsetView) {
		setTranslucentForImageViewInFragment(activity,
				DEFAULT_STATUS_BAR_ALPHA, needOffsetView);
	}

	/**
	 * 为 fragment 头部是 ImageView 的设置状态栏透明
	 * 
	 * @param activity
	 *            fragment 对应的 activity
	 * @param needOffsetView
	 *            需要向下偏移的 View
	 */
	public static void setTransparentForImageViewInFragment(Activity activity,
                                                            View needOffsetView) {
		setTranslucentForImageViewInFragment(activity, 0, needOffsetView);
	}

	/**
	 * 为 fragment 头部是 ImageView 的设置状态栏透明
	 * 
	 * @param activity
	 *            fragment 对应的 activity
	 * @param statusBarAlpha
	 *            状态栏透明度
	 * @param needOffsetView
	 *            需要向下偏移的 View
	 */
	public static void setTranslucentForImageViewInFragment(Activity activity,
                                                            int statusBarAlpha, View needOffsetView) {
		setTranslucentForImageView(activity, statusBarAlpha, needOffsetView);
		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT
				&& Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) {
			clearPreviousSetting(activity);
		}
	}

	// /////////////////////////////////////////////////////////////////////////////////

	@TargetApi(Build.VERSION_CODES.KITKAT)
	private static void clearPreviousSetting(Activity activity) {
		ViewGroup decorView = (ViewGroup) activity.getWindow().getDecorView();
		int count = decorView.getChildCount();
		if (count > 0
				&& decorView.getChildAt(count - 1) instanceof StatusBarView) {
			decorView.removeViewAt(count - 1);
			ViewGroup rootView = (ViewGroup) ((ViewGroup) activity
					.findViewById(android.R.id.content)).getChildAt(0);
			rootView.setPadding(0, 0, 0, 0);
		}
	}

	/**
	 * 添加半透明矩形条
	 * 
	 * @param activity
	 *            需要设置的 activity
	 * @param statusBarAlpha
	 *            透明值
	 */
	private static void addTranslucentView(Activity activity, int statusBarAlpha) {
		ViewGroup contentView = (ViewGroup) activity
				.findViewById(android.R.id.content);
		if (contentView.getChildCount() > 1) {
			contentView.getChildAt(1).setBackgroundColor(
					Color.argb(statusBarAlpha, 0, 0, 0));
		} else {
			contentView.addView(createTranslucentStatusBarView(activity,
					statusBarAlpha));
		}
	}

	/**
	 * 生成一个和状态栏大小相同的彩色矩形条
	 * 
	 * @param activity
	 *            需要设置的 activity
	 * @param color
	 *            状态栏颜色值
	 * @return 状态栏矩形条
	 */
	private static StatusBarView createStatusBarView(Activity activity,
                                                     int color) {
		// 绘制一个和状态栏一样高的矩形
		StatusBarView statusBarView = new StatusBarView(activity);
		LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(
				ViewGroup.LayoutParams.MATCH_PARENT,
				getStatusBarHeight(activity));
		statusBarView.setLayoutParams(params);
		statusBarView.setBackgroundColor(color);
		return statusBarView;
	}

	/**
	 * 生成一个和状态栏大小相同的半透明矩形条
	 * 
	 * @param activity
	 *            需要设置的activity
	 * @param color
	 *            状态栏颜色值
	 * @param alpha
	 *            透明值
	 * @return 状态栏矩形条
	 */
	private static StatusBarView createStatusBarView(Activity activity,
                                                     int color, int alpha) {
		// 绘制一个和状态栏一样高的矩形
		StatusBarView statusBarView = new StatusBarView(activity);
		LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(
				ViewGroup.LayoutParams.MATCH_PARENT,
				getStatusBarHeight(activity));
		statusBarView.setLayoutParams(params);
		statusBarView.setBackgroundColor(calculateStatusColor(color, alpha));
		return statusBarView;
	}

	/**
	 * 设置根布局参数
	 */
	private static void setRootView(Activity activity) {
		ViewGroup rootView = (ViewGroup) ((ViewGroup) activity.findViewById(android.R.id.content)).getChildAt(0);
		if(rootView != null){
			rootView.setFitsSystemWindows(true);
			rootView.setClipToPadding(true);
		}
	}

	/**
	 * 设置透明
	 */
	private static void setTransparentForWindow(Activity activity) {
		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
			activity.getWindow().setStatusBarColor(Color.TRANSPARENT);
			activity.getWindow()
					.getDecorView()
					.setSystemUiVisibility(
							View.SYSTEM_UI_FLAG_LAYOUT_STABLE
									| View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN);
		} else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
			activity.getWindow().setFlags(
					WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS,
					WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
		}
	}

	/**
	 * 使状态栏透明
	 */
	@TargetApi(Build.VERSION_CODES.KITKAT)
	private static void transparentStatusBar(Activity activity) {
		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
			activity.getWindow()
					.addFlags(
							WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
			activity.getWindow().clearFlags(
					WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
			activity.getWindow().addFlags(
					WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);
			activity.getWindow().setStatusBarColor(Color.TRANSPARENT);
		} else {
			activity.getWindow().addFlags(
					WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
		}
	}

	/**
	 * 创建半透明矩形 View
	 * 
	 * @param alpha
	 *            透明值
	 * @return 半透明 View
	 */
	private static StatusBarView createTranslucentStatusBarView(
            Activity activity, int alpha) {
		// 绘制一个和状态栏一样高的矩形
		StatusBarView statusBarView = new StatusBarView(activity);
		LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(
				ViewGroup.LayoutParams.MATCH_PARENT,
				getStatusBarHeight(activity));
		statusBarView.setLayoutParams(params);
		statusBarView.setBackgroundColor(Color.argb(alpha, 0, 0, 0));
		return statusBarView;
	}

	/**
	 * 获取状态栏高度
	 * 
	 * @param context
	 *            context
	 * @return 状态栏高度
	 */
	public static int getStatusBarHeight(Context context) {
		// 获得状态栏高度
		int resourceId = context.getResources().getIdentifier(
				"status_bar_height", "dimen", "android");
		return context.getResources().getDimensionPixelSize(resourceId);
	}

	/**
	 * 计算状态栏颜色
	 * 
	 * @param color
	 *            color值
	 * @param alpha
	 *            alpha值
	 * @return 最终的状态栏颜色
	 */
	private static int calculateStatusColor(int color, int alpha) {
		float a = 1 - alpha / 255f;
		int red = color >> 16 & 0xff;
		int green = color >> 8 & 0xff;
		int blue = color & 0xff;
		red = (int) (red * a + 0.5);
		green = (int) (green * a + 0.5);
		blue = (int) (blue * a + 0.5);
		return 0xff << 24 | red << 16 | green << 8 | blue;
	}

//	/**
//	 * 获取顶部statusBar高度
//	 * @param mActivity
//	 * @return
//	 */
//	public static int getStatusBarHeight(Activity mActivity) {
//		Resources resources = mActivity.getResources();
//		int resourceId = resources.getIdentifier("status_bar_height","dimen","android");
//		int height = resources.getDimensionPixelSize(resourceId);
//		LogUtil.i("status bar>>>", "height:" + height);
//		return height;
//	}

	/**
	 * 获取底部navigationBar高度
	 * @param mActivity
	 * @return
	 */
	public static int getNavigationBarHeight(Activity mActivity) {
		Resources resources = mActivity.getResources();
		int resourceId = resources.getIdentifier("navigation_bar_height","dimen", "android");
		int height = resources.getDimensionPixelSize(resourceId);
		LogUtil.i(TAG,"NavigationBarHeight = " + height);
		return height;
	}

	/**
	 * 获取设备是否存在NavigationBar
	 * @param context
	 * @return
	 */
	public static boolean checkDeviceHasNavigationBar(Context context) {
		boolean hasNavigationBar = false;
		Resources rs = context.getResources();
		int id = rs.getIdentifier("config_showNavigationBar", "bool", "android");
		if (id > 0) {
			hasNavigationBar = rs.getBoolean(id);
		}
		try {
			Class systemPropertiesClass = Class.forName("android.os.SystemProperties");
			Method m = systemPropertiesClass.getMethod("get", String.class);
			String navBarOverride = (String) m.invoke(systemPropertiesClass, "qemu.hw.mainkeys");
			if ("1".equals(navBarOverride)) {
				hasNavigationBar = false;
			} else if ("0".equals(navBarOverride)) {
				hasNavigationBar = true;
			}
		} catch (Exception e) {
			//do something
		}
		return hasNavigationBar;
	}
}
